Who sells trx250r engine kits that will produce well over 50HP?

Am I better off starting with a cr500 motor? Who sells motor kits for the cr500 motor and could hook me up with what I need to run the motor in a quad?

 

PSI has some kits the 425 is well over 50hp as for a cr 500 you would want to get a aftermarket frame built for the engine a stock frame would probaly break a lot and have tons of viberation. for more info on the PSI's web site is http://www.psiperformance.com/catalo...6_Honda250.htm and for info on a PRO-TRAX CR500R go to http://www.yamahayz26.allmypages.com/ and click on PRO-TRAX on the left. what do you want to build your "super quad" for?

 

how do you know "22" or 23" dirt tires for the front to reduce caster for better handling" does it cange some way?

 

The PSI 265 kit is supposed to make around 65 HP.